In the 1D blast problem studied in [1]}, [2]}, the spreading of an intense localized energy burst in an infinite cold gas was investigated and it was shown that at long times, a self-similar scaling solution emerges. This solution could be accurately described by continuum hydrodynamics. Here we studied a related problem, namely the `one-sided' blast problem, viz. the splash problem, where a semi-infinite cold gas on the positive half line is excited at the origin. The splash problem differs significantly from the blast problem and we summarize here some of the striking results that we find:
